Note 9 - Income Taxes (Details) - Unrecognized Tax Benefits Acitivity (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Unrecognized Tax Benefits Acitivity [Abstract]
Balance as of January 1,	$ 1,563	$ 1,979	$ 2,133
Increases related to prior year tax positions	0	0	3
Decreases related to prior year positions	0	0	0
Increases related to current year tax positions	24	2	58
Decreases related to settlements with taxing authorities	0	0	0
Decreases related to lapsing of statute of limitations	(527)	(418)	(215)
Balance as of December 31,	$ 1,060	$ 1,563	$ 1,979